Invention Patent
IT8021909D0
未知
- Patent Title:
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Application No.: IT2190980Application Date: 1980-05-09
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Publication No.: IT8021909D0Publication Date: 1980-05-09
- Inventor: HELINSKI EDWARD FRANK
- Applicant: IBM
- Assignee: IBM
- Current Assignee: IBM
- Priority: US4975579 1979-06-18
- Main IPC: B41J32/02
- IPC: B41J32/02 ; G11B23/12 ; B41J33/26 ; B65H75/00 ; B65H75/02 ; B41F
Abstract:
A cartridge for an inked ribbon has spring support means which maintains a constant back pressure on a uniformly folded ribbon stack inside the storage compartment of the cartridge. The spring support means is displaceable to adjust for dimensional variations occuring within the stack during use.
Public/Granted literature
- IT1150988B Public/Granted day:1986-12-17
Information query
IPC分类:
